CVE-2013-1231 in WebEx
Summary
by MITRE
The HTTP implementation in Cisco WebEx Node for MCS and WebEx Meetings Server allows remote attackers to read cache files via a crafted request, aka Bug IDs CSCue36664 and CSCue36629.
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Analysis
by VulDB Data Team • 03/15/2019
The vulnerability identified as CVE-2013-1231 resides within the HTTP implementation of Cisco WebEx Node for MCS and WebEx Meetings Server products, representing a critical security flaw that enables remote attackers to access sensitive cache files through carefully constructed malicious requests. This vulnerability affects Cisco's collaboration and meeting platforms, which are widely deployed in enterprise environments for video conferencing and web collaboration services. The flaw stems from inadequate input validation and improper access controls within the HTTP handling mechanisms of these servers, creating a pathway for unauthorized information disclosure that could compromise the confidentiality of cached data.
The technical exploitation of this vulnerability occurs when attackers send crafted HTTP requests that manipulate the server's cache handling behavior. The flaw allows adversaries to bypass normal access controls and retrieve cache files that should remain protected, potentially exposing sensitive information such as session data, user credentials, or other confidential content stored in the server's cache memory. This type of vulnerability falls under CWE-200, which encompasses information exposure issues, and specifically relates to improper access control mechanisms within web applications. The vulnerability's impact is amplified by the fact that it operates at the HTTP protocol level, making it particularly difficult to detect and prevent through conventional network security measures.
From an operational standpoint, this vulnerability presents significant risks to organizations relying on Cisco WebEx services, as it could lead to unauthorized access to meeting data, user information, and potentially sensitive business communications. The remote nature of the attack means that threat actors can exploit this flaw from anywhere on the internet without requiring physical access to the network or direct system interaction. The vulnerability affects the core functionality of WebEx meetings and collaboration services, potentially disrupting business operations while simultaneously exposing confidential information to unauthorized parties. Organizations using these platforms face potential regulatory compliance violations and reputational damage if sensitive data is compromised through such attacks.
Security practitioners should implement immediate mitigations including applying the relevant Cisco security patches and updates released to address this vulnerability, which were specifically designed to correct the improper cache file access controls. Network segmentation and firewall rules should be configured to limit access to WebEx server components, while monitoring systems should be enhanced to detect anomalous HTTP request patterns that might indicate exploitation attempts. The vulnerability aligns with ATT&CK technique T1213, which covers data from information repositories, and represents a classic example of how inadequate input validation can create persistent security weaknesses in enterprise collaboration platforms. Organizations should also consider implementing additional access controls and authentication mechanisms to further protect cached data, while regularly reviewing and updating security configurations to prevent similar vulnerabilities from emerging in other components of their WebEx infrastructure.